february 20th. then traveled but baltimore, denver,al b denver, albuquerque the following days. from one to ten, ten being the highest, how much of a concern is this to you? >> two. >> so, very, very low. what sort of exposure would the people in the planes, a long tube that's encapsulated, what's their danger level as those in the airports themselves? >> well, we have two points. number one is it depends if the person was shedding virus, which you do about four days before the rash shows up, four days after. a person has to have a cold like picture. runny nose, eyes ingested. fever, not feeling right. if you're not symptom attic, you're probably not putting out the virus. two, if you're born in america and have lived in america, the odds are great that you've gotten your imizations.